/Engine/Source/Runtime/Sockets/Public/NetworkMessage.h
This function will send a payload data (with header) and wait for a response, serializing the response to aFBufferArchivetrue if successful
static bool SendPayloadAndReceiveResponse ( const [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & Payload, class [FArrayReader](API\Runtime\Core\Serialization\FArrayReader) & Response, const [FSimpleAbstractSocket](API\Runtime\Sockets\FSimpleAbstractSocket) & Socket )